Water-motor.



, J. BAIN.

WATER MOTOR.

APPLICATION FILED JUNE 1s, 1910'.

' Patented Nov. 19, 1912.

IN VENTOR. W BY ATTORNEY.

WITNESSES.-

JAMES BAIN, OF HAMILTON, ONTARIO, CANADA.

WATER-MOTOR.

Specification of Letters Patent.

Patented Nov. 19, 1912.

Application' filed June 13, 1910. Serial No. 566,654.

To all whom it may concern:

Be it known that l, JAMES BAiN, 0f the city of Han'iilton, in the Province of Ontario, lanada, have invented certain new and Useful Improvements in lVater-Motors, of which the following is a specification.

This invention relates particularly to small reciprocating motors adapted for driving washing machines. In such machines much ditliculty has been experienced in securing a reliable, durable motor which will work with certainty under low pressure and which will develop the full pov er theoretically derivable from a given area of piston and it is my object to devise a motor which will be satisfactory in the above respects.

I attain my objects by the construction hereinafter described and illustrated in the accompanying drawings in Which- Figure l is a vertical longitudinal section of my improved motor. Fig. 2 is a longitudinal horizontal section with the parts in a different position. Fig. 3 is a section through the valve chamber with its inlet and outlet. Fig. 4 is a face View of the stop disk for the valve.

In the drawings like letters of reference indicate corresponding parts in the different figures.

A is the cvlinder mounted on anv suitthe passage N leading .to the end of the cylinder adjacent to the stuffing box D. From this construction it is evident that when the `valve is in the position shown in Fig. l that the left hand end of the cylinder is in communication with the exhaust While the opposite end is in communication with the water inlet. lVhen the valve is in the position shown in Fig. 2 the reverse is the case. It will further be noted that owing to the arrangement of the Valve that just as soon as the partition a passes a central position relative to the inlet port H that pressure of the live water is exerted to move the valve the rest of the Way to the completely open position. Thus the shifting of the valve is made much more certain than in the ordinary type of motor, in which it is necessary for the piston to move the valve the full length of its movement in either direction.

The valve is actuated from the piston in the following manner. O is a valve stem which is preferably a separate part connected to the valve in the following manner. A cap b is screwed on to the inner end of the valve and through the end of this cap passes the stem O. A head c is formed on or secured to thev stem preventing the Withdrawal of the stem from the can '.vhen the a very large area enabling the motor to obtain the full advantage of the water conveyed to the motor from the surface pipe.

4As the pressure of the Water holds the valve in either of its two positions, and as the valve is partly moved by the Water pressure, it is necessary to provide strong and reliable means for limiting the movement of the valve in either direction. For this purpose I provide the valve with a tail stem Q,

on the end of which is formed the head it.

valve are thus formed by the cap T and l the disk R, and as these parts are readily made of any necessary thickness and strength the durability of the motor in this respect is assured.

I find that a mot-or constructed substantially as described satisfactorily attains the objects of my 'invention as set out in the preamble of this specification.

While I prefer the details of the construction described and shown, I, of course, reserve to myself the right to utilize any equivalent therefor.

What I claim as my invention is l. In aWater motor the combination of a rylinder; a piston; a cylindrical valve chamber in communication with either end of the cylinder7 and having ports opening into its interior, said ports comprising a single inlet port and an exhaust port at each side of the inlet port, one for each end of the' cylinder;

' a hollow piston valve slidable in said chamber, open through each end to form annular water Ways and provided with a central transverse partition and a port through its Walls at each side of said partition adapted to control the inlet and exhaust ports and bring each end of the cylinder alternately into communication with the inlet port and its appropriate exhaust port; and means whereby the piston at each end of its stroke Will move the valve.

2. In a Water motor the combination of a cylinder; a piston; a cylindrical valve chamber in communication with each end of the fcylinder and having ports opening into its interior, said ports comprising an inlet port and an exhaust port at each side of the inlet port; a hollow piston valve slidable in said chamber, open through each end to form annular water Ways and provided with a central transverse partitionand a port through its wall at each side of said partition whereby when one valve port registers with the inlet port the other valve port registers with one of the exhaust ports, and when the other valve registers with the inlet port, the first valve port registers with the other exhaust port, and means whereby the piston at each end of its stroke will move the valve.

3. In a Water motor the combination of a cylinder; a piston; a valve chamber in communication with either end of the cylinder, and having inlet and exhaust ports formed therein; a valve slidable in said chamber adapted to control said ports; means whereby the piston at each end of its stroke will move the valve; a tail stem on said valve; a head on the end of the stem; a slotted disk adapted to be slipped o-n the stem; a shoulder at the end of the valve chamber against which the disk sits; and means for holding the disk against the shoulder adapted also for engagement by the outer end of the head.

4. In a water motor the combination of a cylinder: a piston; a valve chamber in communication with either end of the cylinder, and having inletand exhaust ports formed therein; a valve slidable in said chamber adapted to control said ports; means whereby the piston at each end of its stroke will move the valve; a tail stem on said valve; a head on the end of the stem; a slotted disk adapted to be slipped on the stem; a shoulder at the end of the valve chamber against which the disk sits; a sleeve screwed into the end lof the valve chamber to hold the disk in place; and a cap screwed on the sleeve servingas a stop to be engaged by the outer end of the head.

This 22nd day of March 1910.

JAMES BAIN.

Signed in the presence of- HAROLD H. CUMMER, F. T. BAINE. 

